Oil change question ? - Scion XB Forum
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post #1 of 19 (permalink) Old 11-20-2009, 11:57 AM Thread Starter
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Default Oil change question ?

My box came with whatever oil the dealer uses so when i did my second oil change i switched to full synthetic mobil 1 i did not notice any improvement in gas mileage so i switched back to whatever the dealer is using should i have waited a while before switching back to see an improvement the box only has 8000 miles? right now i'am averageing 24mpg all city driving.

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post #2 of 19 (permalink) Old 11-21-2009, 01:21 AM
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Default Re: Oil change question ?

Well, you can switch back-and-forth between conventional (factory-fill) and synthetic. They are fully compatible. I have contacted Pennzoil, Castrol, Valvoline and Mobil 1, via email, about their compatibilities. I don't know why you are not getting better MPGs with synthetic oil. I did get about 2 MPG better, after switching to synthetic. The main reason why I switched to synthetic is that I wanted to my engine to last longer. Conventional oil will suffice, however. My recommendation, stick with SYNTHETIC! My xB2's engine runs noticeably smoother.

***2009 Scion xB - Black Pearl Sand***- K & N Drop-In Air Filter- 6000K Digital HID (4300K as backup)- Sylvania SilverStar turn signals- GATLING GUN chrome shifter knob- Pennzoil ULTRA 5W-20 w/ Pure One or Toyota OEM oil filter
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post #3 of 19 (permalink) Old 11-22-2009, 12:36 PM
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Default Re: Oil change question ?

I have had my car on full synthetic since the dealer change ran out (2 free) I used amsoil then went to Mobile one due to not wanting to have to go find a distributor when I wanted to change it.

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post #4 of 19 (permalink) Old 02-07-2010, 08:25 PM
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Default Re: Oil change question ?

I just switched to mobile 1 today on my 4th oil change. I'm curious to see if I notice any change. Decided go go with the Mobile 1 oil filter even though that was 13 bucks.
I ended up doing it myself since the quick lube place by my house wanted 60 bucks for an off brand syn oil. Plus they used 5w 20 instead the 0w 20 the manual recommends.
well see
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post #5 of 19 (permalink) Old 02-08-2010, 10:24 AM
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Default Re: Oil change question ?

In my pov, I Mobil 1 oil filter is great, but they are too expensive. I use Purolator PureOne, it costs more than twice as less. Stay-off the "orange cans". I mean Frams.

***2009 Scion xB - Black Pearl Sand***- K & N Drop-In Air Filter- 6000K Digital HID (4300K as backup)- Sylvania SilverStar turn signals- GATLING GUN chrome shifter knob- Pennzoil ULTRA 5W-20 w/ Pure One or Toyota OEM oil filter
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post #6 of 19 (permalink) Old 02-08-2010, 10:59 AM
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Default Re: Oil change question ?

Fram USED to make great filters . . .
Back in the 1950s and 60s.

Now, they are pretty much crap.

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post #7 of 19 (permalink) Old 02-08-2010, 12:01 PM
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Default Re: Oil change question ?

Quote:
Originally Posted by TartanJack
Fram USED to make great filters . . .
Back in the 1950s and 60s.

Now, they are pretty much crap.
I agree. If you ever open a Fram filter, the materials and the way they are constructed is horrible. I guess this is the result of mass marketing.

***2009 Scion xB - Black Pearl Sand***- K & N Drop-In Air Filter- 6000K Digital HID (4300K as backup)- Sylvania SilverStar turn signals- GATLING GUN chrome shifter knob- Pennzoil ULTRA 5W-20 w/ Pure One or Toyota OEM oil filter
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post #8 of 19 (permalink) Old 02-10-2010, 12:41 AM
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Default Re: Oil change question ?

Quote:
Originally Posted by EPHIOS
In my pov, I Mobil 1 oil filter is great, but they are too expensive. I use Purolator PureOne, it costs more than twice as less. Stay-off the "orange cans". I mean Frams.
Expensive as opposed to what a motor or something else really expensive. Its all in personal preference. My other cars I run ford filters ( I have a ford diesel truck and a mustang )

09 Scion Xb, hypnotic teal mica,Factory spoiler in rear, Modded stock air box with drop in K&N, silencer is gone.Lowered with tanabedf210s. Pillar tape pulled,blacked out in front inset,custom touches inside. More to come but real subtle.
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post #9 of 19 (permalink) Old 03-07-2010, 10:13 AM
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Default Re: Oil change question ?

my MPG increased by 1 since switching .......
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post #10 of 19 (permalink) Old 12-28-2010, 08:33 PM
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synthetic oil will help marginally with MPGs but most benefits are engine longevity. Oil breaks down with moisture (condensation), gas blowby and heat cycling....synthetic has been proven time and again to outperform any conventional oil because of its synthetic additives. Do it for peace of mind and longer change intervals. I swap 5K or 5Months....usually 5K comes first and the oil hardly ever looks black. Driving habits will change the requirements if you are a lead foot, excessive idler, and short trips without giving sufficient time for the engine to maintain operating temps.
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